Damping of power swings using series facts controllers

Abstract

The main aim of this paper is to identify optimal control laws and locations of series connected FACTS controllers (like TCSC and SSSC) in a unified framework to damp power swings. A circuit analogy of the electro-mechanical system is used to suggest the control laws and a location index is also proposed. The signals which are used can be synthesized using locally available measurements. The method is validated on a detailed model of a 3-machine and a 10-machine system. (C) 1999 . .